16 A New Mincralogical Nomenclature. 



Genus 3. Alumen. 

 H = 2— 3. G = l 5.— 1.9. Taste styptic. 



Sp. 1. A. officinale, Native Alum. 



2. A. volcanicum, Solfataritc. 



3. A. Magnesicum, Magncsian Alum. 



4. A. Ammoniacum, Ammonia Alum. 



Genus 4. Natron. 



H = l— 3. G = 1.4—2.2. Taste alkaline. 



Sp. 1. N. Gay-Lussianum, Gay-Lussite. 



2. N. efflorescens, Natron. 



3. N. permanens, Trona. 



Genus 5. Sal. 



H=2. G=2.2— 2.3. Taste purely saline. 

 Sp. 1. S. cubicum, Common Salt. 



Genus 6. Picralum.* 

 H = 1.5 — 2.5. G=1.4— 2.8. Taste saline and bitlei 



Sp. 1. P. Glauberi, Glauber's Salt. 



2. P. Thenardianum, Thenardite. 



3. P. lliombicum, Epsom Salt. 



4. P. Reussii, licttssite. 



5. P. volcanicum, Mascagnine. 

 G. P. Vesuvianum, Aphtliitalite. 



7. P. octahedrum, Sal- Ammoniac. 



8. P. deliquescens, Nitrate of Magnesia. 



9. P. tcncllum, Nitrate of Lime. 



Genus 7. Nitrum. 



H = 1.5— 2. G = 1.9— 2.1. Taste cooling and saline. 



Sp. 1. N. ihombohedrum, Nitrate of Soda. 

 2. N. lliombicum, Nitrate of Potash. 



* Minfii, bitter, and <1Xj sait. For the .> .«.o of euphony the aspirate has been 

 dropped in the composition of this and similar words. 



